How many kinds of vaccines have been included in China's planned immunization at present? What diseases are prevented respectively?

One kind of vaccine (planned immunization vaccine) *** 15 kinds, of which 12 kinds are used for routine vaccination of children (BCG, hepatitis B vaccine, hepatitis A vaccine, polio vaccine, acellular pertussis vaccine, diphtheria vaccine, leprosy vaccine, measles vaccine, leprosy gill vaccine, live attenuated Japanese encephalitis vaccine, group A meningococcal vaccine, A+). Emergency vaccination with three vaccines (epidemic hemorrhagic fever vaccine, anthrax vaccine and leptospirosis vaccine) can prevent 15 diseases, such as miliary tuberculosis and tuberculous meningitis, hepatitis B, hepatitis A, poliomyelitis, pertussis, diphtheria, tetanus, measles, rubella, mumps, epidemic cerebrospinal meningitis, Japanese encephalitis, epidemic hemorrhagic fever, anthrax and so on.

At present, the commonly used second-class vaccines include influenza vaccine, varicella vaccine, Haemophilus influenzae type B vaccine, oral rotavirus vaccine, trivalent pneumonia vaccine vaccine, rabies vaccine, A+C meningococcal conjugate vaccine, A+C+Y+W 135 polysaccharide vaccine, inactivated polio vaccine and DTP -hib conjugate vaccine. It can prevent invasive diseases caused by influenza, chickenpox, HIB and streptococcus pneumoniae.

Second, the second kind of vaccine is necessary.